Water Softener
Weichwassermeister
®
GSX 5, GSX 10, GSX 10-I
Order no. 075 187 970-inter Edited by: KONS-nkes-mrie G:\BA-187970-INTER_GSX 5-10.DOC
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2 | Error messages
Table G-1: Troubleshooting
This is what you see
This is the cause
This is what to do
Error messages displayed
Er 0
1)
Power failure
Appears after power has returned (in case of
power failures longer than 5 minutes). Water
softener performs regeneration for each ex-
changer tank.
In general, the regeneration in pro-
gress is only stopped in case of power failure
and afterwards continues running.
In case of longer periods of power failure, the
internal clock of the control unit continues
running for at least 3 hours.
If the available soft water volume has not
been consumed, the time interval of 4 days
for the forced regeneration is prolonged by
the duration of the power failure (only ap-
plies, if the error signal Er0 is deactivated as
per factory setting).
Er 1
Step monitoring at regenera-
tion motor
Acknowledge malfunction (home in on the ref-
erence position refer to table F-3, item 5).
Notify Grünbeck’s technical service/authorised
service company
Er 2
Step monitoring at transfer
motor
Acknowledge malfunction (home in on the ref-
erence position, refer to table F-3, item 4). Noti-
fy Grünbeck’s technical service/authorised ser-
vice company
Er 3
1)
Hardness stop.
Both exchangers are exhausted – error message
is acknowledging itself after completed regener-
ation.
Er_4
1)
Low-on-salt alarm
Check salt level in brine tank and refill salt tab-
lets, if necessary. Acknowledge malfunction
after 5 minutes (both exchangers will be regen-
erated).
Salt clumps together
Loosen up clumped salt with suitable tool, so
that loose salt is available again in brine tank.
Release manual regeneration (twin regeneration).
Worn carbon electrodes
Acknowledge malfunction.
Notify Grünbeck’s technical service/authorised
service company
Er¯4
1)
Short circuit between carbon
electrodes
Acknowledge malfunction.
Notify Grünbeck’s technical service/authorised
service company.
